Sperry Marine VISIONMASTER FT ECDIS-E, User Manual

Page: 335 / 425

ECDIS-E User Guide Targets
65934012 9-5
on the target origin and information on
the target is shown in the AIS window.
An AIS ship's outline is NOT
considered for CPA/TCPA
infringements. These calculations
will be taken from the AIS triangle
symbol.
Not used in
collision
avoidance An AIS target symbol that is not used in
collision avoidance calculations when
SOG and/or COG are not available. Or
when the Activate on CPA/TCPA/BCR
setting is disabled in AIS Display.
The default state for a newly acquired target is sleeping.
Activating a Sleeping Target
The display of sleeping targets may be switched off from the AIS Display
sub menu.
The following criteria will cause a sleeping target to become activated:
•
When manually selected by the operator, see below.
•
When the target infringes the CPA/TCPA limits or bow crossing criteria
shown on the Target Data tab folder of the Selected Target sub menu.
This is providing the Activate on CPA/TCPA/BCR setting is enabled
in the AIS Display window.
•
When the target enters an auto Activation zone, see Activation Zones.
To manually activate an AIS target do the following
1. Left click on the AIS target, an activated AIS
target will display a heading and speed/course
vector. An AIS reference and automatically
assigned target number will also be displayed,
if enabled in the Identification area of Target
Display.
2. To view data on an activated AIS target left click on the target
again. A dotted green square appears around the target and the
AIS details are displayed in the Target Data tab folder of Selected
Target sub menu.